HP 3PAR System Reporter Software - Manual (Page 286)

9.14 Adaptive Optimization Reports
3PAR System Reporter User’s Guide System Reporter 2.8
Figure 9-3. Region IO Density with Adaptive Optimization
You can see from the chart on the left that most of the space is used by tier 2 (blue) for regions
that have a very small access rate. You can also see from the chart on the right that most of the
IO accesses are handled by the regions in tier 0 (red) even though the chart on the left shows
that these regions occupy very little space. This case illustrates Adaptive Optimization working
very well: the fastest tier handles most of the IO accesses even though it uses very little space,
and conversely most of the space is on the slowest tier even though it does very little IO. The
region IO density report can also be useful to see if Adaptive Optimization will be useful for
the space in a CPG.
Figure 9-4 on page 9.15 shows the Region IO density report for a CPG without Adaptive
Optimization. The charts shown are very similar to the charts in Figure 9-3 on page 9.14 , except
that there is only one tier (CPG).